Discuss November 2013

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160 participants
171 discussions

CentOS LiveCD on USB
by Glenn Eychaner 20 Nov '13

20 Nov '13

I have been following these instructions: https://www.centos.org/forums/viewtopic.php?t=501 to put a bunch of utilities (Clonezilla, SystemRescue, CentOS netinstall/rescue, etc.) on a single USB key. It works great for everything (including Ubuntu Live) except the CentOS 6.4 LiveCD. (You can see my postings at the bottom of the forum.) When booting the LiveCD, I got: Kernel panic - not syncing: Attempted to kill init! Pid: 1, comm: init Not tainted 2.6.32-358.el6.i686 #1 After removing "quiet" and adding "selinux=disabled", I got more information; the boot stalls after finding devices, and gives: No root device "block:/dev/mapper/live-rw" found dracut suggests adding "rdshell", which I did. This was not helpful (I had no idea what to do in the dracut shell), but did notice that in the dracut shell /dev/ did NOT seem to contain my USB drive at /dev/sdb as I would expect. (One reason it seemeed not helpful) So: 1) I used VFAT rather than ext2/3/4. Do I have to use ext2/3/4? 2) Do I need to rebuild the initramfs file somewhere in the CentOS LiveCD directory? 3) Is this just a straight-up hardware incompatibility? The computer is a brand-new SuperMicro X10SAE Haswell system. Thanks, -G. -- Glenn Eychaner (geychaner(a)lco.cl) Telescope Systems Programmer, Las Campanas Observatory

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VNC
by Larry Martell 20 Nov '13

20 Nov '13

I had posted last week about trying to get VNC working. I was never successful nor were multiple admins. But we realized that all the hosts we tried on were VMs. We followed the same procedure ( http://wiki.centos.org/HowTos/VNC-Server) on a machine with physical HW and it worked with no problem. But on the VM I can connect, but I don't get any window displayed. Here is what is in the log: Sat Oct 19 18:39:55 2013 vncext: VNC extension running! vncext: Listening for VNC connections on all interface(s), port 5902 vncext: created VNC server for screen 0 GNOME_KEYRING_SOCKET=/tmp/keyring-Y6Tg3c/socket SSH_AUTH_SOCK=/tmp/keyring-Y6Tg3c/socket.ssh GNOME_KEYRING_PID=19728 Failed to play sound: File or data not found ** (nm-applet:19775): WARNING **: <WARN> request_name(): Could not acquire the NetworkManagerUserSettings service. Error: (9) Connection ":1.552" is not allowed to own the service "org.freedesktop.NetworkManagerUserSettings" due to security policies in the configuration file 19/10/2013 06:39:59 PM Autoprobing TCP port in (all) network interface 19/10/2013 06:39:59 PM Listening IPv{4,6}://*:5900 19/10/2013 06:39:59 PM Autoprobing selected port 5900 19/10/2013 06:39:59 PM Advertising authentication type: 'VNC Authentication' (2) 19/10/2013 06:39:59 PM Advertising security type: 'VNC Authentication' (2) (polkit-gnome-authentication-agent-1:19796): GLib-GObject-WARNING **: cannot regster existing type `_PolkitError' (polkit-gnome-authentication-agent-1:19796): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed Initializing nautilus-gdu extension Initializing nautilus-open-terminal extension ** (gnome-panel:19761): CRITICAL **: panel_applet_frame_change_background: assertion `PANEL_IS_WIDGET (GTK_WIDGET (frame)->parent)' failed (polkit-gnome-authentication-agent-1:19796): polkit-gnome-1-WARNING **: No icon for themed icon with name 'preferences-system-network-proxy' Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x2c00003 (Authentica) Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed. Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x2c00003 (Authentica) Window manager warning: meta_window_activate called by a pager with a 0 timestamp; the pager needs to be fixed. 19/10/2013 06:40:48 PM [IPv6] Got connection from client ::ffff:10.250.151.75 19/10/2013 06:40:48 PM other clients: 19/10/2013 06:40:49 PM Client Protocol Version 3.7 19/10/2013 06:40:49 PM Advertising security type 2 19/10/2013 06:40:49 PM Client returned security type 2 Anyone have any clues as to what could be wrong and why it works on a physical host and not on a VM?

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Emacs 24 on CentOS 6.4
by Carson Chittom 19 Nov '13

19 Nov '13

I'm fairly new to CentOS, so please excuse my ignorance. I've installed CentOS 6.4, for which Emacs 23 is available; but I'd like to have Emacs 24. I've looked at rpmforge and epel, but neither seem to have Emacs 24 already packaged; and I've searched for every combination of emacs + 24 + centos without success. While I could, of course, just do the ./configure && make && make install dance, I don't like having software installed that's not in the packaging system. I'd appreciate any pointer to a prepackaged Emacs 24, or failing that, a good tutorial on how to package software correctly for CentOS.

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maximum number of mounts
by Rita 19 Nov '13

19 Nov '13

What is the maximum number of NFS mounts per client? I have an instance where there are over 400 mount points using autofs. I was wondering if there is a downside to that. -- --- Get your facts first, then you can distort them as you please.--

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Re: [CentOS] file managementttttttttttt
by James B. Byrne 19 Nov '13

19 Nov '13

On Sun, November 17, 2013 12:55, Michael Hennebry wrote: > > Last week, I installed CentOS 6 yet again. > I took the default desktop: gnome. > Whenever I open a directory, I get a new window. > That gets rather annoying, > especially when I have to drill down several levels. > Is there around that behaviour? > If it's in edit->preferences, I didn't find it. > Eventually I expect to change desktops. > Until then, any ideas? > . Instead of clicking on a directory in the first window (which Opens that directory in an new window) try using the Browse Folder option instead. Or open the first directory by right clicking and sekecting Browse Folder to begin with. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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What gui to use for syslog-ng logs?
by Rafał Radecki 18 Nov '13

18 Nov '13

Hi All. I have an environment in which I would like to implement a GUI for parsing syslog-ng logs from operating system, application servers and databases. I've heard that Splunk is a good tool but its quite hard to learn. Are there any valuable alternatives? What are you using and why? Best regards, Rafal.

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(no subject)
by Andrew Holway 18 Nov '13

18 Nov '13

[root@ipa tftpboot]# semanage fcontext -l | grep tftp /tftpboot directory system_u:object_r:tftpdir_t:s0 /tftpboot/.* all files system_u:object_r:tftpdir_t:s0 /usr/sbin/atftpd regular file system_u:object_r:tftpd_exec_t:s0 /usr/sbin/in\.tftpd regular file system_u:object_r:tftpd_exec_t:s0 /var/lib/tftpboot(/.*)? all files system_u:object_r:tftpdir_rw_t:s0 /var/lib/tftpboot/etc(/.*)? all files system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/grub(/.*)? all files system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/images(/.*)? all files system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/memdisk regular file system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/menu\.c32 regular file system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/ppc(/.*)? all files system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/pxelinux\.0 regular file system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/pxelinux\.cfg(/.*)? all files system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/s390x(/.*)? all files system_u:object_r:cobbler_var_lib_t:s0 /var/lib/tftpboot/yaboot regular file system_u:object_r:cobbler_var_lib_t:s0 Could someone tell me why: /var/lib/tftpboot(/.*)? - is using (/.*)? /tftpboot/.* - is using .* Thanks, Andrew

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Re: [CentOS] php 5.1 to 5.3
by Nikos Gatsis - Qbit 18 Nov '13

18 Nov '13

Helo list About a month ago I was wandering how to upgrade php 51 to 53. Finally, I follow those instructions: http://drup.org/upgrading-centos-5-php-5.3 I share my experience with you. Everything qoes fine and know 5.3.3 php ver run on my centos 5-10.el5. Thank you all for your help. Nikos On 4/10/2013 3:02 μμ, Reindl Harald wrote: > > Am 04.10.2013 13:51, schrieb Nikos Gatsis - Qbit: >> Hello list >> I'm managing a web server with centos-release-5-9.el5.centos.1. >> I have php-5.1.6-40.el5_9 right now and I'd like to update it to php53. >> I wander if its easy or complicated. If somebody have any instructions >> I'd be very glad! > * error_reporting = E_ALL | E_STRICT > * display_errors = 0 > * watch your logs for deprecated warnings, cleanup the stuff > * make sure your software works with 5.3 before you start > > * rpm -qa | grep php -> notice what is installed > * remove the php-packages with "rpm -e --nodeps" > * "yum install" the same packages with php53-subpackage > * watch your errorlogs > -- Untitled Document ------------------------------------------------------------------------ *Γατσής Νίκος - Gatsis Nikos* Web developer tel.: 2108256721 - 2108256722 fax: 2108256712 email: ngatsis(a)qbit.gr http://www.qbit.gr

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CentOS 5.7 - occasional lockup
by whitivery 18 Nov '13

18 Nov '13

Using Core i7 boxes with CentOS 5.7, have experienced lockups on half of a handful of units over a couple months. They are Logic Supply Mini-ITX model KR960 with Core i7-3610QE. A couple weeks ago I enabled self-reboot on kernel panic (echo 10 > /proc/sys/kernel/panic) on all units, and had another unit lock up rather than reboot itself. I'm not sure how to pursue the problem. Doing "yum update kernel*" shows there's a newer kernel, 2.6.18-371.1.2.el5 - I'm using the stock 2.6.18-274.el5 kernel now - where's a change log of the differences so I can see if there are driver or kernel updates that might seem to apply? I don't know if setting up kdump would help since it doesn't even seem to be getting to the point where the kernel is trying to handle a panic. What else might I try?

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file managementttttttttttt
by Michael Hennebry 17 Nov '13

17 Nov '13

Last week, I installed CentOS 6 yet again. I took the default desktop: gnome. Whenever I open a directory, I get a new window. That gets rather annoying, especially when I have to drill down several levels. Is there around that behaviour? If it's in edit->preferences, I didn't find it. Eventually I expect to change desktops. Until then, any ideas? -- Michael hennebry(a)web.cs.ndsu.NoDak.edu "On Monday, I'm gonna have to tell my kindergarten class, whom I teach not to run with scissors, that my fiance ran me through with a broadsword." -- Lily

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Discuss November 2013